Does that buy Houston any more service time with GS?
He's still got 2018, 2019, and 2020 before becoming a free agent. This just gives him a larger 2018 salary in exchange for probably saving the Astros a couple mil on his 2019 salary (I assume if he had a typical season this year, their financial projections showed him getting more than $14m in 2019 via arbitration). I suppose it could end up making his 2020 salary lower, too; I'm not totally sure it works that way though.